20526291

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{1201}}^1$

素因数の和:1424

約数の個数: 20

約数和(自身を含む): 30833704

約数和(自身を除く): 10307413

約数列:

[1, 3, 9, 27, 81, 211, 633, 1201, 1899, 3603, 5697, 10809, 17091, 32427, 97281, 253411, 760233, 2280699, 6842097, 20526291]

約数ペア:

[(1, 20526291), (3, 6842097), (9, 2280699), (27, 760233), (81, 253411), (211, 97281), (633, 32427), (1201, 17091), (1899, 10809), (3603, 5697)]